Like the past Pokémon games, Pokémon Black 2 & White 2 have a variety of events that unlock when you take a special Pokémon to a certain area. These activate special tutors, new missions or just simple items. To get them, however, you need to have specific Pokémon on hand to activate it

Victini

Location: Liberty Garden

Method
If you take a Victini into Liberty Garden, when you enter the basement, it will ask to come out of its PokéBall. Accept and it will move around the room, happy about seeing its old dwellings again. After it has examined everything, it will return to its PokéBall

Landorus - Reflecting Mirror

Location: Abundant Shrne

Method
If you take a Landorus in its Therian Forme, which was captured in Pokémon Dream Radar, to a certain area, you will receive the special item called the Reflecting Mirror. This item will allow for forms of Tornadus, Thundurus and Landorus to change

Keldeo - Secret Sword

Location: Pledge Grove

Method
If you take a Keldeo obtained from a special event to Pledge Grove and interact with a special rock, it will be given the ability to learn the move Secret Sword. If this move is taught to Keldeo, it will change into its Resolute Form

The user cuts with its long horn. The odd power contained in the horn does physical damage to the target.

Meloetta - Relic Song & Funfest Mission

Location: Castelia City

Method
When you obtain a Meloetta from a special event, if you take it to the café in Castelia City, you will learn about how Meloetta lost its voice in times past. It will soon get inspired and will finally start singing. Doing so allows you to teach it the special move Relic Song, which will change Meloetta's form in battle whenever used

The user sings an ancient song and attacks by appealing to the hearts of those listening. It may also induce sleep.

In addition to that, when you speak to another person in the café, you will be given a special Funfest Mission called A Great Berry Search Adventure, which has you search for Berries in Unova

Genesect - Special Drives

Location: P2 Lab

Method
When you obtain a Genesect from a special event, if you take it to the P2 Lab, you will find a scientist in there. He will tell you about how he was the one who researched Genesect and modified it to aid in Team Plasma's plans, but failed to win the approval of N with his methods. He will challenge you to a battle. if you defeat him, he will gift you two special drives. These items, when attached to Genesect, will change the type of its special move; Techno Blast. There are four drives but they are exclusive to each game